This spreadsheet is intended to calculated SO2 emissions for PB1 from the combined fuels

of bark and TDF. These emission calculations take into account the SO2 removal efficiency of the ash from wood combustion, based on Someshwar and Jain, 1993 from TAPPI Journal Vol. 76, No. 7. SO2 calculations are based on equation 6 from Table 3 in Someshwar and Jain, 1993. Equation 6 was chosen because it was a conservative estimate of the removal efficiency and included a summary of a mi xture of different fuel types that seemed most representative of the fuels in PB1.

Fuel oil SO2 emissions are not calculated here, but space is provided to link to fuel oil SO2 emissions in order to summarize total SO2 emissions from PB1 on this spreadsheet.

Cells with yellow highlight and blue text are intended for data input. Each month the usage of each of the combined fuels should be entered in the yellow area including bark (wet basis) and TDF. SO2 emissions from fuel oil are calculated separately. These emissions can be included in this table by link or by entering them each month. A running total is available for each applicable column.

Parameters such as sulfur content of the fuels and moisture content of the bark are listed at the top of the table. These parameters can be changed as necessary, but in general should not need to be edited.

Bark S content: 0.00023 X = S in combined fuels/ton of wood residue TDF S content: 0.0211 Y1 = S emissions/ton combined fuel Y2 = S captured Bark moisture content: 0.41 *Apply 97.5% SO2 Removal Efficiancy of W ESP to Fuel Oil Burning

Bark (wet) PB1 Bark TDF PB1 Sulfur PB1 Sulfur Combined Combined Fuel Oil **TOTA L**  Usage Usage (dry) Usage from Bark from TDF X Y1 lb SO2/ton Fuel Y2 S emissions SO2 Emis SO2 Emis* **SO2 Emis** (tons) (tons) (tons) (tons) (tons) (lb/ton) (lb/ton) % (tons) (tons) (tons) **(tons)** Jan **13,860** 8,178 **499** 1.88 10.53 3.03 0.951 1.902 73.8 4.12 0.21 0 **0.21** Feb **6,007** 3,544 **213** 0.82 4.49 2.99 0.933 1.867 74.3 1.75 0.09 **0.09** Mar **8,003** 4,722 **269** 1.09 5.68 2.87 0.884 1.767 75.9 2.20 0.11 **0.11** Apr **3,633** 2,143 **107** 0.49 2.25 2.56 0.761 1.522 80.3 0.86 0.04 **0.04** May **10,963** 6,468 **324** 1.49 6.84 2.57 0.767 1.534 80.1 2.60 0.13 **0.13** Jun **13,113** 7,736 **241** 1.78 5.09 1.78 0.447 0.893 96.4 1.78 0.09 **0.09** Jul **11,443** 6,752 **376** 1.55 7.93 2.81 0.861 1.722 76.7 3.07 0.15 **0.15** Aug **13,436** 7,927 **599** 1.82 12.64 3.65 1.197 2.394 67.3 5.10 0.26 **0.26** Sep **23,917** 14,111 **1,145** 3.25 24.16 3.88 1.291 2.583 65.2 9.85 0.49 **0.49** Oct **7,008** 4,135 **220** 0.95 4.65 2.71 0.821 1.642 78.1 1.79 0.09 **0.09** Nov **12,549** 7,404 **495** 1.70 10.45 3.28 1.050 2.100 70.9 4.15 0.21 **0.21** Dec **3,673** 2,167 **148** 0.50 3.12 3.34 1.072 2.143 70.3 1.24 0.06 **0.06**

**Total 127,605**  **75,287 4,636**  **17.3 98**  **1.93 0.00**  **1.93** 

## 2013 **Power Boiler #1 Sulfur Dioxide Emission Calculations**

**PB1 SO2 Emissions PB1 Fuel Usage** 

C:\PROGRA~2\Documentum\CTS\docbases\ProDocbase\config\temp_sessions\7154881498852452087\0900006481a6f830 4/6/2015 © 2007 RMT, Inc. All rights reserved.

## C:\PROGRA~2\Documentum\CTS\docbases\ProDocbase\config\temp_sessions\7154881498852452087\0900006481a6f830 4/6/2015 © 2007 RMT, Inc. All rights reserved. 

# y = 0.4005x

- 0.2645 R2 = 0.8969

0 10 20 30 40 50 60 70 80 90 100

0 1 2 3 4 5 6

0 2 4 6 8 10 12**S u** **l f** **u r** **C a** **p t** **u r** **e ,** **% l** **b S** **E m** **i t** **t e** **d /** **t o** **n D** **r y** **F u** **e l** 



# lb S in / ton Dry **B ark**  

# #1 PB NCA

**SI Graph Vs. SO2 Monitor**  **Data (Regression)** 

NCASI Trend - S per Fuel Monitor - Emission NCASI Trend - Capture % Monitor - %Capture Power (Monitor - %Capture)